Composite differential piston



FIG. 1 is a front perspective view of a composite differential piston showing my new design;

FIG. 2 is a partial cutaway, front perspective view of FIG. 1 taken along the line 2-2 in FIG. 1;

FIG. 3 is a rear perspective view of FIG. 1;

FIG. 4 is a front elevation view of FIG. 1;

FIG. 5 is a rear elevation view, rotated 180° of FIG. 1; and,

FIG. 6 is a right side elevation view of FIG. 1.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a composite differential piston, as shown and described. 